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JPL Small-Body Database Browser
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11902 (1991 PZ12)
Classification: Main-belt Asteroid          SPK-ID: 2011902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1319600784141933 4.6598e-08  
a 2.432339738710629 1.0486e-08 au
q 2.111367996060416 1.1143e-07 au
i 5.551468098229746 4.4065e-06 deg
node 322.0175682252672 4.4014e-05 deg
peri 81.05424529153156 4.9646e-05 deg
M 49.64430558130893 1.9095e-05 deg
tp 2458409.425945537206
(2018-Oct-17.92594554)
7.3842e-05 TDB
period 1385.59012561763
3.79
8.9603e-06
2.453e-08
d
yr
n .2598170940627404 1.6802e-09 deg/d
Q 2.753311481360842 1.187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1461  
   data-arc span      12550 days (34.36 yr)  
   first obs. used      1984-11-20  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51454  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:44  

Additional Information
 Earth MOID = 1.1278 au 
 Jupiter MOID = 2.63606 au 
 T_jup = 3.488 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO467803  
diameter diameter 3.504 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.361   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11902 (1991 PZ12)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PZ12 = 1984 WH1 = 1984 YF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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